Fig. 2

Index of cell proliferation and NeuGcGM3 expression. a and b: Representative photomicrographs of different levels of nuclear Ki-67 immunostaining (brown color) in sarcomas, as indicative of cell proliferation. Counterstaining with Mayer Hematoxylin (Blue color). Black bar = 100 μm. c: Distribution of low (IRS < 6) or high (IRS ≥ 6) NeuGcGM3 expression according to the index of cell proliferation. Cell proliferation rates was grouped as follow: low (≤ 10%), moderate (11–50%) and high (≥ 50%)